탄질에 따른 석탄의 물성 변화

• 영문명: Variation of the physical properties of coal depending upon the quality
• 발행기관: 대한자원환경지질학회
• 저자명: 권병두(Byung Doo Kwon) 허식(Sik Heo)
• 간행물 정보: 『자원환경지질』21권 1호, 97~106쪽, 전체 10쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1988.02.28

영문 초록

The purpose of this study is to collect basic data which are prerequisite for quantitative analysis of coal logging data. The study involves laboratory measurements of physical properties such as seismic velocities (P.S-waves), resitivity and density of domestic and imported foreign coals. The relationships between these properties were analyzed by using cross-plots. Correlation between the physical properties of coal and the results of chemical analysis (calorie, fixed carbon, ash, moisture, volatile matter and sulfur contents) was also studied to obtain ideas about coal quality analysis using logging data. Summarized results are as follows : 1. Vp is exponentialy related to Vs. And the average value of Vp is about 1.8 times as large as Vs. 2. Since coal has very low density compared with surrounding sedimentary rocks, density logging is appeared to be the best method for identifying coal seams and evaluating their qualities. 3. For the case of domestic coals, the ash contents and calorie show a perfect inverse relationship. Since the density increases as increase of ash content with a well-defined functional form, the ash content of domestic coals can be estimated by density measurements. 4. Because of low ash content, low density and high resistivity, foreign coals and domestic lignites are easily distinguished from domestic coals.

목차

Abstract

서론

석탄 시료의 물성 측정과 탄질 분석

탄질 분석치 및 물성간의 상관분석

결론

참고문헌